87608515 has 4 divisors (see below), whose sum is σ = 105130224. Its totient is φ = 70086808.

The previous prime is 87608491. The next prime is 87608519. The reversal of 87608515 is 51580678.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87608515 - 2¹³ = 87600323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87608519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8760847 + ... + 8760856.

It is an arithmetic number, because the mean of its divisors is an integer number (26282556).

Almost surely, 2^87608515 is an apocalyptic number.

87608515 is a deficient number, since it is larger than the sum of its proper divisors (17521709).

87608515 is a wasteful number, since it uses less digits than its factorization.

87608515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17521708.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 87608515 is about 9359.9420404188. The cubic root of 87608515 is about 444.1354505849.

The spelling of 87608515 in words is "eighty-seven million, six hundred eight thousand, five hundred fifteen".